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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2022
Fair Value Measurements |
Schedule of Assets/Liabilities Measured at Fair Value on Recurring Basis | Assets/Liabilities Measured at Fair Value on a Recurring Basis
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurement at December 31, 2022 and December 31, 2021 | ​ | ​ | ​ | ​
​ | ​ | (in thousands) | ​ | ​ |  | ​
​ | ​ | Quoted Price in Active | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Market for Identical | ​ | Significant Other | ​ | Significant | ​ | ​ | ​ | ​
​ | ​ | Instruments | ​ | Observable Inputs | ​ | Unobservable Inputs | ​ | ​ | ​ | ​
​ | ​ | Level 1 | ​ | Level 2 | ​ | Level 3 | ​ | Total
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Assets | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |
Cash and cash equivalents | $ | 307 | (1) | 82 | (1) | 23,467 | ​ | 21,018 | ​ | — | ​ | — | ​ | 23,774 | ​ | 21,100
Processa common shares |  | 56 | (2) | — |  | — | ​ | 240 | ​ | — |  | — |  | 56 |  | 240
| (1) | The Company held approximately, $307 in cash as of December 31, 2022, of which approximately $33 was in Canadian funds (translated into U.S. dollars). As of December 31, 2021, the Company held approximately $8 2, of which approximately $34 was in Canadian funds (translated into U.S. dollars).
| (2) | The Company received 41 restricted common shares of Processa (PSCA). The share restriction expired in three tranches: 50%, 25% and 25% at the 6, 9 and 12 month intervals, respectively from October 30, 2020. As of December 31, 2022, the restrictions have expired.

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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